64637815

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{181}}^1$

素因数の和:391

約数の個数: 32

約数和(自身を含む): 87639552

約数和(自身を除く): 23001737

約数列:

[1, 5, 11, 43, 55, 151, 181, 215, 473, 755, 905, 1661, 1991, 2365, 6493, 7783, 8305, 9955, 27331, 32465, 38915, 71423, 85613, 136655, 300641, 357115, 428065, 1175233, 1503205, 5876165, 12927563, 64637815]

約数ペア:

[(1, 64637815), (5, 12927563), (11, 5876165), (43, 1503205), (55, 1175233), (151, 428065), (181, 357115), (215, 300641), (473, 136655), (755, 85613), (905, 71423), (1661, 38915), (1991, 32465), (2365, 27331), (6493, 9955), (7783, 8305)]